Tire lock



May 5, 1925. 1,536,744

M. E. ANDERSON TIRE LOCK Filed April l0, 1924 Patented May 5, 1925.

MARTIN E. ANDERSON, 0F DENVER, COLORADO.

TIRE LOCK.

Application led April 10, 1924. `Serial No. 705,431.

To all whom t may camera.' Y

Be iitknown that l, MARTIN ANDERSON, a citizen ofthe United States,residing at Denver, the city and county of Denver, and .State ofColorado, have invented certain new and 'useful Improvements in TireLooks; and Ido declare fthe oilowingfto be a full, clear, and exactdescription of vthe invention, such as will enable others skilled in.the art .to which it appertains to make and -use ythe same, yreferencebeing `had to :the accompanying drawings, and to the icharacters Vofreference `marked thereon, `Which form a `part .of thisspecilication.

rllhis invention `relates lto improvements xin locks for automobiletires, o1 the itype de- .sonibed and claimed by me in any application,Serial No. 622,679, `filed November 3, 1923.

The object fof Ithis invention iis to Iproduce fa lock that can bereadily applied to and removed from a ythreaded .member such as a boltor valve stem, but which, when .in lplace, can be removed, if at all,only with great difficulty, unless the proper key is employed.

My ,invention can be 'best described and will 7be most 4readilyunderstood when .refference is lhad to :the accompanying `drawing :in`W-laich the preferred .embodiment Vthereof .is Shown, and in which:

Eig. l |'is a `section taken on laine l1 1, Fig. V3, with the keyJremoved;

Fig. 2 is a section similar to that shown infF'ig.lan'dshovvs-thefkeyfin place 'and the lock'in positionfto be appliedtoorremoved from a Ythreaded fmember;

lFig. 3 is a section .taken .on .line 8 3, 1F ig. @2;

Fig. 4 fis -a top plan yvievv of the locking nut;

Fig. 5 -is a side-elevation ofgthe nut shown in Fig. 4i;

F ig. fshoWs my -lock in `place on a `.vail-,Ve stem for the purpose fof.locking avdemountable rim in .placeg Fig. 7-ishowsrmy Alook used.for.locking two @members together;

Eig. 8 vshowsaibolt to .which my lock is zapplied.; and

Figs. .9.and ,.10 areaiplan view and aside elevation, .respeCtively,-ofa-modili'ed form ofdefermed nut.

.My lock iQQRsiSts @of a .c ,lindrical member 1I provided with an [enargedv cylindrical ehainb'er :2715er the ireoeption off @the ylookingVnut 3, and washer 4. .Qneend .of-.the charnedges thereof. The other endof the chamber 2 is closed by the Wall 8 that is provided Ywith athreaded opening 9. The nut f3 Vis somewhat smaller in diameter lthanthe chamber 2 and `has a central opening fthreaded Yor engagement With abolt l0 or a Vvalve stem 11. The nut is cut on one side, asindicated bynumeral 12, and bent into-helical form in the manner shown Ain Fig. 15.The cut 12 is made .after the ,opening has ,been vthreaded and thenut-is dient atter the cut is made. It is thereforeevi'dent that When.the nutis held in the yposition shown in Fig. .2, the threads willassume their normal re- ',lation, but if yit is left free, it Will `tend,to assume the shape Ashown in Figs. .1 and .5. The Washer 4 rests uponAthe nutv between it andthe Wall Sifso that the nut cannotbe engaged bya sharp tool When Athe lock is in l.place von abolt. Mykeyeonsists of ya.tube 13 having an inside diameter slightly greater than the rootdiameterofithe threads in the nut, so that it can beslipped over .anybolt to which the lock may beapplied. @ne end 7 of vthe key is threaded,as .indicated at 14, so as ,tof engage Athe thllads ',in the opening V9.The actionof thekeyis'toclamp the nut againstthe end ,member 5Withsuicient force to cause it to assume its ori inal shape in themanner shown in gFig. 2. rhen -the key vis in place and the nutclamped'in the position shown in'rFig. 2, the lock vmay be threadedonto* a bolt or removed therefrom in `the same manner as any ordinarynut. Instead of makingthenut in theimanner described it may be formedasshown in Figs. 9 and 10, Whichshovv a vnut cut ipartly across, asindicated by `12a. The cutis made after the nut is .threaded and the:sides are then spread apart as shown.

Let ,us now l,suppose a .case in which the lock has been screwed .onto aibolt and `the Vkey removed. The nut, which-must beqmade of someresilient material, .Will tendzfo assume the distorted lshape .shown in1 .and 5. This Will cause it fto bind the bolt. If qmember llis rotated,vit will Arnot rotate the nut, as the ,ffiliction between the bolt and-the nut vis greater than any Ifriction tthat can be developed betweenthlirut and its enelosing loasimgr. ,I @he ,lok .fean iii-rererqrenet-,be removed frein thetult whe key 13 is inserted and screwed down withsufficient force to flatten the nut and to remove the tension thatcauses it to bind on the bolt.

If an unauthorized person should attempt to pick the lock by inserting asharp instrument between the bolt and the sides of hole 9, he willmerely engage the washer 4, which is freely rotatable. By making thethreads in hole 9 and on the end of the key 13 different and .some rightand others left, a large num er of combinations can be obtained, whichwould make it highly improb able that an unauthorized person will acacidentally obtain a key that will open the lock. The threads, moreover,may be made special so that no stock taps or dies can be found to cut aproper thread on the key and .in this manner a very safe lock can beproduced.

In Fig. 6 I have shown my lock in place on a valve stem 11, which passesthrough the demountable rim 15 and felloe 16 of an automobile wheel. Theordinary nut 17 and dust cap 18 can be used in the usual manner.

In Fig. 7 I have shown my lock applied to a bolt 10 that can be used forany purpose, such as clamping two members 19 and 20. An ordinary nut 21can be applied to the bolt to produce the desired clamping action. InFig. SI have shown a bolt that may be used for any purpose. The bolt hasa cotter pin 22 that positively prevents loss of the nut 21.

My invention depends primarily on the use of a deformed nut that willbind on a threaded 'bolt and which is enclosed and freely rotatable in acasing. The casing isv so constructed that a key may be associatedtherewith for the purpose of clamping the nut so as to hold itnon-rotatably in normal. Shape. I am aware that the nut may be deformedin other ways than that shown, and I desire to cover broadly the use ofa deformed nut in combination with the other parts shown. l

Having now described my invention, what I claim as new is:

.1. locking device comprising, in combination, a casing having acylindrical cham- .ber, said chamber being provided with a top and abottom, each of which has an axial opening .of less diameter than thechamber, the opening in the top being threaded, a nut wlthin saidchamber, said nut being freely movable therein, and of greater diameterthan the opening and a tubular threaded member operatively related tothe top and adapted to force the nut against the bottom and to clamp itagainst rotation.

2. locking device comprising, in com* bination, a casing having acylindrical chamber, said chamber being provided with a top and abottom, each of which has an axial opening of less diameter than thechamber,

the opening in the top being threaded and adapted to receive a threadedclamping member, a nut within said chamber, a clamping memberoperatively associated with the threads of the opening, and a washerbetween the nut and the top, said casing, nut and washer being freelymovable with respect to each other, the nut and washers being of greaterdiameter than the openings. Y

3. A locking device comprising, in combination, a casing having acylindrical chamber, said chamber being provided with a top and abottom, each of which has an axial opening of less diameter than thechamber, the opening in the top being threaded, a nut within saidchamber, a washer between the nut and the top, said nut and washer beingfreely movable with respect to each other and the casing, the nut andwasher being of greater diameter than the openings, and a tubularclamping member operatively associated with the threaded opening in thetop and adapted to force the nut against the inner surface of the bottomso as to clamp the nutagainst rotation.

4. A locking device comprising a tubular member provided with acylindrical opening, one end of said opening being of smaller diameterthan the other end whereby a shoulder is formed, a circular nutrotatablv mounted in the larger end of said opening; a washer betweenthe nut and the shoulder, means for preventing the nut from beingremoved from the opening, and means for clamping said nut againstrelative rotation with'respect to the tubular member, said meanscomprising a tubular key having a threaded connection with the interiorof that portion of the cylindrical opening having the smaller diameter,said key being adapted to engage the nut and clamp the ame againstrotation in the tubular mem- 5. In a locking rdevice adapted to beturned entirely onto a threaded stem, in combination, a casing having achamber, a nut freely rotatable within said chamber, said casing havingan abutment, forengaging the nut to limit its longitudinal movement withrespect to the casing, and a tubular key member adapted to be fittedover the threaded stem, said key and casing having threaded engagementwith each other, said key being adapted to engage the nut and to forceit against the abutment to hold it against rotation with respect to thecasing.

6. A lock comprising an. externally threaded member, a deformed nutcoopera-e tively connected thereto, a casing for enclos-`- ing said nut,said nut and casing being 125 freely rotatable with respect to eachother, and means for causing said nut to assume its normal shape and forclamping it against rotation within said casing. f

7. A lock adapted to be securedeto`the 130 threaded end of a bolt, saidlock comprising a casing, a nut freely rotatable in said casing, saidnut having its threaded surface deformed so as to clamp itself onto thethreaded surface of a bolt, and means comprising a tubular member forcausing the nut to assume normal shape and for clamping it to thecasing.

8. A lock comprising a casing having a cylindrical chamber, a circularnut freely rotatable within said chamber, said nut being deformed, andmeans for changing the nut to normal shape and clamping it againstrotation with respect to the casing, said means comprising a tubeadapted to have threaded connection with the casing and to clamp the nuttherein.

9. A lock comprising, in combination, a body member having an enlargedcylindrical chamber', one end of said chamber having an internallythreaded opening and the other end having an unthreaded opening, saidopenings being of less diameter than the chamber, a circular nut withinsaid chamber, said nut having a cut through its side and having theadjacent ends distorted, a washer between the nut and the end having thethreaded opening, and means for forcing said nut against the end of thechamber having the unthreaded opening so as to change it to normal shapeand clamp it against rotation.

10. A lock comprising, in combination, a body member having an enlargedcylindrical chamber, one end of said chamber having an internallythreaded opening and the other end having an unthreaded opening. saidopenings being of less diameter than the chamber, a circular nut withinsaid chamber, said nut having a cut through its side and having theadjacent ends distorted, a washer between the nut and the end having thethreaded opening, and means for forcing said nut against the end of thechamber having the unthreaded opening, so as to change it to normalshape and clamp it against rotation, said means comprising a tubular keyhaving its outer surface provided with threads for engaging the sides ofthe threaded opening.

11. A locking device comprising a member provided with a c vlindricalopening, one end of said opening being of smaller diameter than theother end, whereby a shoulder is formed, a cylindrical distorted nutrotatably mounted in the larger part of said opening, a freely movablewasher between the nut and the shoulder, means secured to said memberfor preventing the nut from being removed from said opening, and meansfor causing the nutl to assume normal shape and for clamping it againstrelative rotation with respect to said member.

12. A locking device comprising a member provided with a cylindricalopening, one end of said opening being of smaller diameter than theother end, whereby a shoulder is formed, a cylindrical distorted nutrotatably mounted in the larger part of said opening, a freely rotatablewasher between the nut and the shoulder, means secured to said memberfor preventing the nut from being removed from said opening, and meansfor causing the nut to assume normal shape and for clamping it againstrelative rotation with respect to said member, said means comprising atubular key having a threaded connection with the interior ot' thatportion of the opening having the smaller diameter.

13. A locking device comprising a casing having a cylindrical opening,one end of sai-d casing having a transverse wall member provided with athreaded opening of less diameter than the chamber, the other end ofsaid casing having a rabbet, a washer having its edge located in saidrabbet, a portion of the metal of the casing extending over the edge ofthe washer so as to hold it in place, a nut rotatably mounted in saidchamber, a freely movable washer between the nut and the transversewall, sai-d nut and washer being of greater diameter than the openings,and means for clamping the nut against rotation.

14. A locking device comprising, in combination, a casing having achamber, said chamber being provided with a top and a bottom, said topand bottom each having an opening, which is substantially concentricwith the opening in the other, said openings being of less diameter thanthe corresponding dimension of the chamber, the opening in the topmember being threaded for the reception of a threaded clamping member, anut freely movable within the chamber, said nut being of greaterdiameter than the openings, and means comprising a threaded member forclamping the nut against rotation.

YIn testimony whereof I aix my signature.

MARTIN E. ANDERSON.

